stopping power

I saw a fist fight outside walmart a while back. It was a good fight and the police broke it up and sent the warriors their separate ways. No guns, no knives and no arrests. One of the guys got inadvertently punched on the shoulder. This punch stopped him in his tracks. The other guy got stopped...

you know I put this in here because I thought some of you might find it interesting,not because I believe it or I think one caliber is better than the other,but evidently nobody saw it the way I did,it wasn't put in here to sway you but maybe you would say that's really interesting,but it was...